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35 articles from ScienceDaily

Researchers harness the power of a new solid-state thermal technology

Researchers have discovered a way to make a versatile thermal conductor, with promise for more energy-efficient electronic devices, green buildings and space exploration. They have demonstrated that a known material used in electronic equipment can now be used as a thermal regulator, too, when it is in a very pure form. This new class of material gives engineers the ability to make thermal...

How tumors make immune cells 'go bad'

Investigators have discovered that cancerous tumors called soft-tissue sarcomas produce a protein that switches immune cells from tumor-attacking to tumor-promoting. The study could lead to improved treatments for soft-tissue sarcomas.

Robotic lightning bugs take flight

Inspired by fireflies, researchers created soft actuators that can emit light in different colors or patterns. These artificial muscles, which control the wings of featherweight flying robots, light up while the robot is in flight, which provides a low-cost way to track the robots and also could enable them to communicate.

Walking gives the brain a 'step-up' in function for some

It has long been thought that when walking is combined with a task -- both suffer. Researchers have now found that this is not always the case. Some young and healthy people improve performance on cognitive tasks while walking by changing the use of neural resources.

Robots turn racist and sexist with flawed AI, study finds

A robot operating with a popular Internet-based artificial intelligence system consistently gravitates to men over women, white people over people of color, and jumps to conclusions about peoples' jobs after a glance at their face. The work is believed to be the first to show that robots loaded with an accepted and widely-used model operate with significant gender and racial biases.

Vitamins, supplements are a 'waste of money' for most Americans

Scientists say for non-pregnant, otherwise healthy Americans, vitamins are a waste of money because there isn't enough evidence they help prevent cardiovascular disease or cancer. They've written an editorial in support of new recommendations that state there was 'insufficient evidence' that taking multivitamins, paired supplements or single supplements can help prevent cardiovascular disease and...

Global AFib study finds simple ablation has best outcomes

Results from one of the largest global studies of atrial fibrillation (AFib) procedures show that the simple approach is usually best when it comes to ablation, a procedure where physicians destroy or ablate cardiac tissue to correct irregular heart rhythms. Researchers found that using advanced image-guided technology to more aggressively target diseased areas of the heart that cause arrythmias...

Scientists identify a possible source for Charon's red cap

Scientists combined data from NASA's New Horizons mission with novel laboratory experiments and exospheric modeling to reveal the likely composition of the red cap on Pluto's moon Charon and how it may have formed. This first-ever description of Charon's dynamic methane atmosphere using new experimental data provides a fascinating glimpse into the origins of this moon's red spot as described in...

Research highlights importance of large wood in streams for land-based animals

Land managers have invested millions of dollars annually since the 1980s to place large pieces of wood back in streams, owing primarily to its importance for fish habitat. But little is known about how large wood in streams impacts birds and land-based animals. Scientists are beginning to change that with a just-published paper that outlines what they observed from one year of footage from...